Home / 1,888.35-2,829.63-1,269.77

Finding the Fourth Proportional to 1,888.35, 2,829.63 and 1,269.77

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Solution

The fourth proportional to 1,888.35, 2,829.63 and 1,269.77 is: 1,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.35 : 2,829.63 = 1,269.77 : x
  2. Step 2: Convert to fraction form
    1,888.35/2,829.63 = 1,269.77/x
  3. Step 3: Cross multiply
    1,888.35x = 2,829.63 × 1,269.77
  4. Step 4: Simplify right side
    1,888.35x = 3,592,969.90
  5. Step 5: Solve for x
    x = 3,592,969.90/1,888.35
  6. Step 6: Final answer
    x = 1,902.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.